package com.major.algorithm.findone;

import java.util.HashMap;
import java.util.Map;
import java.util.Set;

public class FindOneMain {

    public static void main(String[] args) {

        int[] array = {2,3,2,3,1};
        int res = FindOne.FindOneNum(array);
        //System.out.println(res);

        Map<Integer,String> map = new HashMap<>();
        map.put(1,"1");
        map.put(2,"2");
        map.put(3,"3");

        Set<Integer> keySet = map.keySet();
        System.out.println(keySet);
    }
}
